my old poaching mate did a bit....but as mac said there were loads back then....im sure the mesh is about the same size as a purse net....2 inch or there abouts...but i think its made as a square mesh not dimond....and the net size i can remember ...but i think around 10 yard square ...
but even my mate recons the lamped them first to see where they were sat....
but as mac said lamping them was very easy....we did a fair bit of it ....and with a 410 once shot 13 with one shot...they sit tight together when its real cold